Telegram iOS app redesign

Check full screen here: http://i.imgur.com/EXHgVCK.png

List of improvements for Chats:

— smaller avatar, looks more light;
— compact preview of group chat, you can see sender in one line with message;
— icons for media (like photos or location), you can see the type of message you received;
— group chats without icon now have an avatars.